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<html lang="zh">

	<head>
		<meta charset="UTF-8" />
		<meta name="viewport" content="width=device-width, initial-scale=1.0" />
		<meta http-equiv="X-UA-Compatible" content="ie=edge" />
		<title>title</title>
	</head>

	<body>
		<a href="mdn-demo/index.html" target="_blank">mdn demo</a>
		<p>Web worker</p>
		<p id="msg"></p>
		<input type="text" id="first" />
		<input type="text" id="second" />
		<p id="result"></p>
		<button id="btnStop">stop</button>
		<script src="main.js" type="text/javascript" charset="utf-8"></script>
	</body>

</html>